37226281 has 2 divisors, whose sum is σ = 37226282. Its totient is φ = 37226280.

The previous prime is 37226279. The next prime is 37226291. The reversal of 37226281 is 18262273.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36723600 + 502681 = 6060^2 + 709^2 .

It is a cyclic number.

It is not a de Polignac number, because 37226281 - 2¹ = 37226279 is a prime.

It is a super-2 number, since 2×37226281² = 2771591994181922, which contains 22 as substring.

Together with 37226279, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (37226201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18613140 + 18613141.

It is an arithmetic number, because the mean of its divisors is an integer number (18613141).

Almost surely, 2^37226281 is an apocalyptic number.

It is an amenable number.

37226281 is a deficient number, since it is larger than the sum of its proper divisors (1).

37226281 is an equidigital number, since it uses as much as digits as its factorization.

37226281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8064, while the sum is 31.

The square root of 37226281 is about 6101.3343622522. The cubic root of 37226281 is about 333.9001009993.

The spelling of 37226281 in words is "thirty-seven million, two hundred twenty-six thousand, two hundred eighty-one".